I own a 36 foot RV that is 12 foot 3 inches in hight. It has a sturdy roof constructed of fiberglass over 5/8 inch plywood which is supported by a 3/4 inch square tube frame. I have an Icom 7000 and an AH-4 tuner with several antenna options I use when parked. What I would like to incorporate is a Citizen Band radio to use for local traffic conditions while moving. My problem is as always the antenna because of my hight. Overpasses in cities can be as low as 13 feet 6 inches and interstate overpasses are 16 feet 6 inches. So a roof mounted vertical would be extremely short and a side mount could be longer but still not much of the antenna would be above the roof. Both of these antennas would only be half of an antenna, no counterpoise. Another option I am considering and would like to hear some thoughts on is using two 102 inch SS whips mounted length ways on the roof raised 4 to 6 inches in a dipole fashion.
Thanks for your thoughts
Maybe you can go with a bumper mount antenna on the back of the RV. That would work if you have a steel bumper. I do not know what you would do if it is one of those vehicles that are covered with fiberglass and does not have a flat, solid surface to mount to.
Another option would be to get a trailer hitch type antenna mount. Many RV's have a receiver type trailer hitch. There are antenna mounts that work for that as well.